07+ Yukon XL Denali Exaust

[Davey]

Looks like I am going with magnaflow!

 

[07Burb]

Can't got wrong with magnaflow or flowmaster IMO....

 

[Upstate]

Anyone have any ideas on hp /tq gains or mpg gains with any of the systems?

 

[felixgun]

I have a magnaflow 12589 muffler with volant tips... love it.

 

[07Burb]

Anyone have any ideas on hp /tq gains or mpg gains with any of the systems?

With just the system and no other mods?? minimal at best no matter what the websites say Mainly just a nicer sound...

 

[Upstate]

With just the system and no other mods?? minimal at best no matter what the websites say Mainly just a nicer sound...

Honestly, in some cases with less back pressure I could see a loss in mpg for normal driving.

 

[07Burb]

^^^This wouldn't surprise me.

 

[BigRed76]

I LOVE my Corsa ........... Magnaflow has dreaded "drone" issues IMO

 

[mlwald79]

corsa sport

 

[SLT Kon-Man]

Corsa Touring, mellow tone at lower RPM, and agressive tone at higher RPM...

 

[Upstate]

Corsa Touring, mellow tone at lower RPM, and agressive tone at higher RPM...

It looks like you have a spoiler over the rear window or is that a illusion?

 

[Davey]

What do ya'll think on just replacing the muffler. From the research I have done, the Denali Exhaust is already piped with large piping and the muffler is really the only thing holding it back and by pulling the muffler and replacing it with flow-master, magnaflow, etc. you will get the same performance increase and the same sound and NO drone inside the cab....? Without having to install a complete cat-back system. Anyone have thoughts on my findings?

 

[felixgun]

It looks like you have a spoiler over the rear window or is that a illusion?

yep i'm pretty sure that's an attached spoiler on the third led brake housing.

---------- Post added at 09:27 AM ---------- Previous post was at 09:25 AM ----------

What do ya'll think on just replacing the muffler. From the research I have done, the Denali Exhaust is already piped with large piping and the muffler is really the only thing holding it back and by pulling the muffler and replacing it with flow-master, magnaflow, etc. you will get the same performance increase and the same sound and NO drone inside the cab....? Without having to install a complete cat-back system. Anyone have thoughts on my findings?

I just replaced my actual muffler with the Magnaflow 12589, cut off the nasty canister-looking resonator by the bumper, and put on new tips made by Volant. If I had unlimited funds i'd buy the whole Corsa Sport exhaust system.

 

[Davey]

yep i'm pretty sure that's an attached spoiler on the third led brake housing.

---------- Post added at 09:27 AM ---------- Previous post was at 09:25 AM ----------



I just replaced my actual muffler with the Magnaflow 12589, cut off the nasty canister-looking resonator by the bumper, and put on new tips made by Volant. If I had unlimited funds i'd buy the whole Corsa Sport exhaust system.

Felixgun, Any drone in the cab? I want a beefer sound but I don't want something loud.